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Home >> Ford >> 2009 >> Fusion S, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 800 (Automatic Transmission - 5R110W -- F250-F550 Super Duty) >> Description And Operation >> Transmission Electronic Control System >> Transmission Fluid Temperature (TFT) Sensor

Transmission Fluid Temperature (TFT) Sensor

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The transmission fluid temperature (TFT) sensor twist-locks into the solenoid body. The TFT is a temperature-sensitive device called a thermistor. As the transmission fluid temperature rises, the TFT resistance decreases. The PCM monitors the voltage across the TFT sensor to determine transmission fluid temperature. The PCM uses the TFT signal as an input to determine cold and hot temperature shift and TCC scheduling.

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